Anti-reflux valve

Abstract

1. The name of the design product: anti-reflux valve. 2. The use of the design product: the product is used to prevent fluid reflux, for example, applied to ventilator, high flow humidification oxygen therapy instrument and other ventilation therapy equipment, open when the ventilation therapy equipment delivers gas, close when the ventilation therapy equipment stops delivering gas, prevent oxygen, water and other pollutants from flowing back to the ventilation therapy equipment. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: design 1 perspective view 1. 5. Design 1 is designated as the basic design. 6. Other circumstances that need to be explained: design 2 uses state diagram for pressure protection valve open state.

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